1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Brilliant_brown [7]
3 years ago
14

In a relational database design, all relationships are expressed by ___________. Creating a line between entity types Creating a

primary key Creating a super key Creating a foreign key
Social Studies
1 answer:
musickatia [10]3 years ago
3 0

Answer:

"Creating a forign key" is the correct answer for the above question.

Explanation:

  • A relational database is used to hold the data. The data is stored in the cell which is made up of columns and rows and found in the table structure.
  • This database uses the relational table to store the data. So there can be two types of table, primary table, and the secondary table. '
  • The secondary table holds the foreign key which maps the data from the primary table.
  • The above question asked about the key, which is used to read the data of the relational table. This key is known as the foreign key. Hence this option is correct.
  • While the other options are not correct because others are not used to read the data from the secondary table.
You might be interested in
How does the St. Lawrence Seaway help trade between Canada, the US, and other countries?
lord [1]

Answer:

Lawrence River have been major North American trade arteries since long before the U.S. or Canada achieved nationhood. Today, this integrated navigation system serves mariners, farmers, factory workers, and commercial interests from the western prairies to the eastern seaboard.

3 0
2 years ago
A(n) _____ is an uncut or regenerated forest that has not been seriously disturbed by human activities or natural disasters for
Ivahew [28]

Answer: The answer is an old growth forest

Explanation: Old growth forests are also known as Virgin forests because these forests have been in existence for a long period of time (usually hundreds of years) without any disturbance. The disturbance could be in the form of human activity like logging or natural activities like wildfire and windstorm.

These forests usually have distinct ecological features like large trees and multilayered canopies. They are habitat for many rare plant and animal species like the northern spotted owl, marbled murrelet and fisher.

8 0
3 years ago
Read 2 more answers
Pollution problems generally represent 1) cases of good versus evil. 2) cases of villain versus victim. Both 1) and 2) are corre
Montano1993 [528]

Answer:

Both 1) and 2) are correct.

Explanation: Pollution is the release of harmful and hazardous materials or substances to the environment,it can be in the form of Solids,liquids and gas. The environment can be in the form of AIR ENVIRONMENT OR THE ATMOSPHERE, WATER BODIES OR THE HYDROSPHERE AND SOLID EARTH.

The different environments of the earth has a being a victim of the "evil" or hazardous Activities of man. The Earth is known to be Good while the activities of man has been "evil" or dangerous to the Earth.

6 0
3 years ago
I need to double check if I am correct.
KatRina [158]
Yes executive is basically people who work with the president or try to get laws passed
8 0
3 years ago
Auto insurance is: A) required by law B) required in a few states C) optional if your car and house are paid off D) an optional
vesna_86 [32]

Answer: A

Explanation:

4 0
1 year ago
Read 2 more answers
Other questions:
  • On what grounds does Hamilton argue that the judicial department of government is the least powerful branch of government? 2. Wh
    6·1 answer
  • Which describes the flow of energy in a food chain?
    13·2 answers
  • Preschoolers __________. are more likely than older children to claim that lying is always wrong cannot distinguish moral impera
    5·1 answer
  • Which emerging adult fits marcia's identity foreclosure status?
    14·1 answer
  • In the United States how many people live in poverty
    10·2 answers
  • What part of the Constitution mandated the census?
    11·1 answer
  • Which concept of democracy does the stamen below define? everyone is significant in a democracy.
    6·1 answer
  • Why did Sumerians believe that they were created?
    8·1 answer
  • Nuclear families become more common as _____.
    11·2 answers
  • Why do you think Korea's government has changed so much throughout the history
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!